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MS. CYNTHIA MAE WILSON GRILLO DO
NPI 1366458457
Pediatrics in Southbridge, MA

Active since July 31, 2006PECOS Enrolled
100 SOUTH ST, SUITE 102, SOUTHBRIDGE, MA 01550(508) 764-3194(508) 765-5458 Get Directions Write a Review

NPPES record last updated: February 1, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Cynthia Mae Wilson Grillo Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. CYNTHIA MAE WILSON GRILLO DO (NPI 1366458457) is an individual pediatrics provider in Southbridge, Massachusetts, licensed in Massachusetts (152581) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366458457
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMS. CYNTHIA MAE WILSON GRILLOCredential: DO
Location Address100 SOUTH ST, SUITE 102Southbridge, MA 01550-4051
Mailing Address100 South St, Suite 102Southbridge, MA 01550-4051 · (508) 764-3194 · Fax (508) 765-5458
Phone(508) 764-3194
Fax(508) 765-5458
Sole ProprietorNo
Enumeration DateJuly 31, 2006
Last NPPES UpdateFebruary 1, 2012
✔ NPI 1366458457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MA · 152581
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
100 SOUTH ST, Southbridge, MA 01550
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Other Identifiers 4

Medicare ID-Type Unspecified1211013MA
Medicare PINA2952001MA
Medicaid220019MA
Medicare UPINF96608

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Cynthia Mae Wilson Grillo Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Cynthia Wilson Grillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Adventist Health Clearlake Hospital Inc.
2,634 mi
Critical Access
15630 18TH AVE
Clearlake, CA 95422
  • Reassigned Medicare billing, California enrollment
  • 182 clinicians in this Medicare group
NPI 1124018031 (707) 994-6486

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EDWARD YE PA-C
Physician Assistant (Medical)
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-9771
DR. KRISHNAVENI SIRIGADDI MD
Internal Medicine
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-9771
DR. CARL JOHN VANDERPUTTEN DO
Emergency Medicine
100 SOUTH ST, HARRINGTON MEMORIAL HOSPITAL
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-9771
DR. MARSHA KAY FEARING MD, MPH, MMSC.
Pediatrics
100 SOUTH ST, STE 102
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-7860
DR. JOHN GUS STAGIAS M.D.
Internal Medicine (Gastroenterology)
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-9771
MR. DOMINIC IDOKO MA
Counselor (Mental Health)
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 765-9771
STEPHANIE RUIZ-GONZALEZ CRNA
Nurse Anesthetist, Certified Registered
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 909-7799
MARY E FRISELLA MD
Internal Medicine (Cardiovascular Disease)
100 SOUTH ST
SOUTHBRIDGE, MA 01550
Worcester County (508) 764-6041

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cynthia Wilson Grillo's NPI number?

The NPI number for Cynthia Wilson Grillo is 1366458457. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Cynthia Wilson Grillo located?

Cynthia Wilson Grillo practices at 100 South St Suite 102, Southbridge, MA 01550. The listed phone number is (508) 764-3194.

What is Cynthia Wilson Grillo's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Cynthia Wilson Grillo enrolled in Medicare?

Yes. Cynthia Wilson Grillo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Cynthia Wilson Grillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Wilson Grillo reassigns Medicare benefits to Adventist Health Clearlake Hospital Inc. (Clearlake, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cynthia Wilson Grillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Cynthia Wilson Grillo was last updated on February 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.